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Length (lying down, under 2 years) and height (standing, from 2 years) show how well a child is growing over time. Enter the measurement and date of birth to see the percentile on the WHO or CDC chart, the z-score and the normal range for that age.
A height below the 3rd percentile (−2 SD) is called short stature or stunting and is worth a check-up; most children who are short have short parents and are perfectly healthy.
| Sex | Boy |
| Date of Birth | 15 Jul 2025 |
| Date Measured | 15 Jan 2026 |
| Length / Height | 67.6 |
| Length Unit | cm |
| Growth chart / country | WHO — India, UK, Australia & most countries |
| Born at (weeks of pregnancy) | 40 weeks |
| Height percentile | 48th percentile |
| What it means | Out of 100 boys of the same age, about 48 have a lower height and 52 a higher one. |
| Assessment | Within the normal range |
| Z-score (SD score) | -0.04 |
| Median (50th percentile) for this age | 67.69 cm |
| Normal range (3rd–97th percentile) | 63.67 – 71.72 cm |
| Age used | 6 months 1 day |
| Growth chart | WHO (international — used in India, UK, Australia and most countries) |
| Height entered | 67.6 cm (2 ft 3 in) |
48th percentile.
Try this example →| Sex | Girl |
| Date of Birth | 15 Jan 2022 |
| Date Measured | 15 Jan 2026 |
| Length / Height | 40 |
| Length Unit | inches |
| Growth chart / country | CDC — United States |
| Born at (weeks of pregnancy) | 40 weeks |
| Height percentile | 58th percentile |
| What it means | Out of 100 girls of the same age, about 58 have a lower height and 42 a higher one. |
| Assessment | Within the normal range |
| Z-score (SD score) | 0.19 |
| Median (50th percentile) for this age | 100.75 cm |
| Normal range (3rd–97th percentile) | 92.81 – 109.2 cm |
| Age used | 4 years 0 months |
| Growth chart | CDC (United States) |
| Height entered | 101.6 cm (3 ft 4 in) |
58th percentile.
Try this example →It compares your child with 100 children of the same age and sex. The 60th percentile means your child measures more than 60 of them and less than 40.
No. Any percentile between about the 3rd and 97th can be healthy. What matters is that your child grows steadily along roughly the same curve.
Yes. Enter the weeks of pregnancy at birth and the calculator uses corrected age until 2 years, as doctors do.
The WHO median is about 87 cm for boys and 86 cm for girls; most 2-year-olds are between 81 and 93 cm.
Lay the baby flat on a firm surface, head against a wall or board, legs straightened, and measure to the heel. Two people make it easier.